Handheld Coolant Refractometer ATC, Coolant Freezing Point Meter for Battery Fluid Fahrenheit

The RHA-100A model handheld coolant and battery fluid refractometer measures the freezing point temperature (in ℉) of ethylene glycol or propylene glycol based automobile antifreeze, and the specific gravity (sg) of battery acid. The specifications are listed in the table below.

 

  • This model is commonly used in automotive maintenance and battery servicing.
  • The instrument body is made of copper material to maximize measurement accuracy and durability.
  • This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost.

 

Measurement Specifications

 

Scale(s) Measurement Range Resolution Accuracy
Ethylene 
-84℉ to 32℉
5
±5
Propylene
-60℉ to 32℉
5
±5
Battery Fluid
1.100 to 1.400 SG
0.01sg
±0.01sg



Product Description

The handheld coolant refractometer is widely used in car maintenance, repair workshops, and battery servicing. This tool helps ensure proper coolant protection in cold climates and accurate assessment of lead-acid battery charge levels.

The RHA-100A model handheld antifreeze and battery acid refractometer has two functions.

  1.  It measures the freezing point temperature (in ℉) of ethylene glycol- or propylene glycol-based automobile antifreeze. The reading indicates the temperature at which the tested solution will begin to freeze. 
  2.  It measures the specific gravity (SG) of battery acid. Specific gravity is the density of the acid compared to water and indicates the state of charge of a lead-acid battery — higher sg means the battery is more fully charged.

 

 

Product Features

Refractometer Prism

Dual-Function Testing in °F

 Measures the freezing point of coolants in Fahrenheit, as well as the specific gravity of battery fluid. Ideal for U.S.-based automotive maintenance.

 

Copper Alloy Construction

 Strong, thermally stable body for consistent accuracy in garage and field environments.

 

Crown Glass Prism

 Reduces refractive deviation and improves optical clarity for sharper, more accurate scale readings.

 

Automatic Temperature Compensation (ATC)

 Ensures reliable readings without the need for manual adjustments due to ambient temperature changes.

 

 

 

 

 

Typical Applications

- Coolant System Checks (°F)

 Measure the freezing point of ethylene and propylene glycol coolant in Fahrenheit to ensure proper engine protection in cold climates.

- Battery Fluid Diagnostics

 Test the specific gravity (SG) of lead-acid battery electrolyte to evaluate charge level and battery condition.

- Automotive Service & Repair

 Used during routine maintenance for cars, trucks, and motorcycles to assess coolant and battery fluid status.

- Heavy Equipment & Agricultural Machinery

 Maintain coolant and battery systems in tractors, loaders, and off-road machinery operating in harsh environments.

 

 

Product Parameters

Model RHA-100A
Net Weight 0.24kg
Length 153mm
Diameter 29mm
Temperature Range

10℃ to 30℃ with ATC

20℃ without ATC

 

 

 

Packaging

We have three packaging options: leather, plastic, or cardboard. The cost per unit vary with different packaging.

If you have a preferred packaging option or require customized packaging with your own text or logo, please feel free to send us an inquiry.

Handheld Refractometer Packaging Options and Content

 

 

Instruction of Use

Handheld Refractometer Instruction of Use

 

After-Sale Services

At Lindian Technology, we take pride in providing only premium-quality refractometers. If any of our products is found to be defective upon arrival, we will replace the defective unit free of charge.

In addition, we offer a free replacement warranty for a period of three years, along with free lifetime maintenance and calibration services.



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